7. Stockholders equity (Tables)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Options and Warrrants outstanding

Shares Outstanding		Weighted Average Exercise Price		Shares Vested		Expiration Fiscal Period
	2,805,600	$	1.45		2,805,600	4th Qtr, 2013
	40,000		0.01		40,000	3rd Qtr, 2014
	200,000		1.25		200,000	4th Qtr, 2014
	108,500		0.40		108,500	1st Qtr, 2015
	104,000		0.19		104,000	2nd Qtr. 2015
	10,000		0.19		10,000	3rd Qtr. 2015
	30,000		0.53		30,000	4th Qtr, 2016
	50,000		0.50		50,000	1st Qtr, 2017
	50,000		0.50		50,000	2nd Qtr. 2017
	1,079,000		0.55		803,265	4th Qtr, 2021
	125,000		0.53		46,872	1st Qtr, 2022
	35,000		0.53		12,395	2nd Qtr, 2022
	1,462		3.25		1,462	3rd Qtr, 2022
	52,000		0.75		-	1st Qtr, 2023
	4,690,562				4,262,094

Weighted average assumptions for Black-Scholes-Merton option pricing formula

Expected life (in years)	3.74 years
Weighted average volatility		135.89	%
Forfeiture rate		20.00	%
Risk-free interest rate		1.06	%
Expected dividend rate		-	%

Exercise prices for options and warrants granted and outstanding which resulted in stock based compensation charges

Exercise Price Range		Number of options or warrants
$	0.25 - $0.50		100,000
$	0.51 – $0.75		1,297,000
$	0.76 - $1.00		-
$	1.01 - $1.25		624,000
$	1.26 - $2.00		32,500
$	2.01 - $3.00		-
$	3.01 - $4.00		1,462
			2,054,962

Summary of non-vested options and warrants

	Shares
Non-vested outstanding, December 31, 2012		498,675
Granted		152,000
Vested		(222,207	)
Cancelled		-
Non-vested outstanding, March 31, 2013		428,468

Shares of common stock reserved for future issuance

Stock options outstanding	1,133,462
Stock options available for future grant under the 2011 Plan	366,538
Warrants	3,557,100
Total common shares reserved for future issuance	5,057,100